Newer models of this Western digital SSD can run 50% slower – here’s why – review Geek.

Western Digital.

Western Digital’s Blue SN550 is one of the best, most efficient NVME SSDs on the market, but a quiet change in manufacturing could ruin its reputation. As reported by the Chinese shop. Express View, The newer versions of the Blue SN550 run on inferior NAND flash, resulting in a reduced speed of about 50%.

The WD Blue SN550 Sandisk relies on the 96-layer BiCS4 3D TLC NAND flash, which can be identified by the 60523 1T00 part number. But on the reporters. Express View Saw the model of Blue SN550 manufactured in July 2021 using SanDisk NAND flash with part number 002031 1T0. Interestingly, the WD Blue SN550 revision also runs on a new firmware, and this firmware will not work on the original version of the drive.

During everyday activities, such as browsing or initial photo editing, the two models of the WDW SN550 perform at almost identical speeds. But by the test Express View Show that, once the modified Blue SN500’s SLC (single level cell) cache is full, it only runs at 390MBps – about 50% slower than the original model. (Tom’s hardware. Reports that the original Blue SN550 runs at 610MBps when its SLC cache is full, so real-world speed differences may vary.)

Western Digital has not commented on the alleged slowdown, which could have a negative impact on video editors and other professionals who work with large files. If the problem is wide (and not just a fluke that has come). Expressway. workbench), then the company needs to update its Blue SN550 specs sheets. Otherwise, it is deliberately misleading consumers.

This is not the first time an SSD manufacturer has quietly disrupted performance by using dirty NAND flash hardware. For example, recently caught up in the same scandal. Of course, more testing is needed for backups. Express Views Observations, and there is no guarantee that Western Digital is deliberately compromising the performance of the Blue SN550.

But why would Western Digital use the new NAND flash hardware in the first place? Well, unless the WD is buying cheap spare parts to save money, it is likely to be heading for a global supply shortage. Almost all tech manufacturers are compromising to deal with the current supply shortage, and in many cases, this means replacing parts to keep up with customer demand.

To let you know how bad things are going, Sony’s CFO Hiroki Totoki recently said that the PlayStation 5 may need several minor revisions to maintain its current manufacturing volume. In fact, the console has already undergone its first revision in less than a year since its launch.

Source: Experiment by Urs Technica.

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